Deep Space 9 hade 6 dockningspyloner : 3 överst och 3 på botten (kallad " "övre pyloner" och "nedre pyloner").
The docking pylons were a series of six large structures attached to Deep Space 9's docking ring. These sweeping modules contained the large ore processing facilities, and also permitted the docking of large starships at the station. The pylons were generally referred to by their position relative to the station's horizontal axis and a designated number, for example "Upper pylon 1" or "Lower pylon 3". At the end of the pylons were docking bays, where large starships could dock with the station.
Dessutom hade Deep Space 9 6 mer interna dockningsplatser :
Not all docking bays were located within a structure. Deep Space 9 had a total of twelve docking bays of which six were external, called docking pylons. They were used to facilitate large ships which did not fit into the internal docking bays.
Så svaret är 6 stora fartyg och minst 6 små fartyg . Mer än ett litet fartyg kan passa in i en intern dockningsplats, så antalet beror verkligen på hur små fartygen är.
Dessa är ganska mycket de första resultaten för Googling Deep Space 9-dockor, så jag är förvånad att din forskning inte berättade allt detta redan.